SB2024090206 - Use-after-free in Linux kernel net
Published: September 2, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024090206
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-44946)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the kcm_sendmsg(), KCM_STATS_ADD(), sk->sk_write_space() and init_kcm_sock() functions in net/kcm/kcmsock.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/72da240aafb142630cf16adc803ccdacb3780849
- https://git.kernel.org/stable/c/00425508f30baa5ab6449a1f478480ca7cffa6da
- https://git.kernel.org/stable/c/9c8d544ed619f704e2b70e63e08ab75630c2ea23
- https://git.kernel.org/stable/c/807067bf014d4a3ae2cc55bd3de16f22a01eb580
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.321
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.225
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.166
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.283
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.107
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.48